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Table 3 NRI and IDI of the nomogram in survival prediction for PBS patients compared with TNM staging

From: Development and validation of a prognostic nomogram for predicting overall survival in patients with primary bladder sarcoma: a SEER-based retrospective study

Index

Training cohort

Validation cohort

Estimate

95% CI

P-value

Estimate

95% CI

P-value

NRI (vs. TNM staging)

For 1-year OS

0.153

0.048–0.238

 < 0.01*

0.198

0.072–0.367

 < 0.01*

For 3-year OS

0.210

0.084–0.297

 < 0.01*

0.165

0.026–0.343

0.02*

For 5-year OS

0.212

0.084–0.304

 < 0.01*

0.179

0.029–0.362

0.01*

IDI (vs. TNM staging)

For 1-year OS

0.033

0.015–0.058

 < 0.01*

0.079

0.037–0.149

 < 0.01*

For 3-year OS

0.046

0.019–0.081

 < 0.01*

0.079

0.033–0.151

 < 0.01*

For 5-year OS

0.044

0.017–0.081

 < 0.01*

0.086

0.032–0.169

 < 0.01*

  1. NRI, net reclassification improvement; IDI, integrated discrimination improvement; PBS, primary bladder sarcoma; OS, overall survival
  2. *P < 0.05 indicating statistical significance
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BMC Urology

ISSN: 1471-2490

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